I/O operations are not efficient when executed on VMs, it is preferable to run I/O intensive jobs directly on physical machines. To maximize resource usage, Dynamic Cluster supports physical host repurposing between physical machines and hypervisors, based on job demand.
Some supported hypervisor platforms (KVM) allow physical machine jobs to run directly on the idle physical resources of a hypervisor. The physical machine jobs whose templates are satisfied by the hypervisor can run on the hypervisor without the need for any reprovisioning. The hypervisor behaves as both a physical machine and a hypervisor, depending on job demand.